APA (7th ed.) Zitazioa

ebrary, Inc, & Poli, R. (2010). Causality and motivation. Ontos Verlag.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta Roberto Poli. Causality and Motivation. Frankfurt ; New Brunswick: Ontos Verlag, 2010.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta Roberto Poli. Causality and Motivation. Ontos Verlag, 2010.